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Wireless Personal Communications
Erschienen in: Wireless Personal Communications 2/2017

25.05.2017

Maximum Transmission Capacity in Cognitive Radio Networks

verfasst von: Shujing Xie, Lianfeng Shen

Erschienen in: Wireless Personal Communications | Ausgabe 2/2017

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Abstract

The transmission capacities (TC) is defined as the sum of successful transmissions per unit area in the secondary and the primary systems while meeting the target outage probabilities of both. We obtain the TC of different spectrum sharing modes in cognitive radio networks over fading channels by stochastic geometry. The ratios of transmission power and user density between two systems are derived. The constraint is found to make the TC of spectrum sharing mode exceed that of single system mode. The upper bound of TC is derived and an accessing strategy to reach the maximum value is proposed, under which the TC of secondary user will be maximized when that of primary user is fixed. Numerical results confirm the analytical derivations and show that the TC with our accessing strategy will be larger than that of single primary system mode or fixed spectrum sharing mode.
Vorheriger Artikel A Bandwidth-Efficient Transmission Scheme Based on Spectrum Sensing Results in CR Networks
Nächster Artikel A Low Complexity Modified SLM and Companding based PAPR Reduction in Localized OFDMA

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Metadaten
Titel
Maximum Transmission Capacity in Cognitive Radio Networks
verfasst von
Shujing Xie
Lianfeng Shen
Publikationsdatum
25.05.2017
Verlag
Springer US
Erschienen in
Wireless Personal Communications / Ausgabe 2/2017
Print ISSN: 0929-6212
Elektronische ISSN: 1572-834X
DOI
https://doi.org/10.1007/s11277-017-4348-3

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